#281D79#281D79

#281D79 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.5% C 0.147 H 279.1°. Best body text is #FFFFFF at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#281D79
RGB	rgb(40, 29, 121)
HSL	hsl(247, 61%, 29%)
HSV	hsv(247, 76%, 47%)
CMYK	cmyk(66.9%, 76%, 0%, 52.5%)
CIE-LAB	lab(18.84, 34.18, -50.41)
CIE-LCH	lch(18.84, 60.91, 304.13°)
OKLab	oklab(31.52% 0.0234 -0.1455)
OKLCH	oklch(31.52% 0.147 279.1)
XYZ	xyz(4.7645, 2.7099, 18.3574)
Luminance	0.0271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D79 #6E791D

analogous

#1D4079 #281D79 #561D79

triadic

#281D79 #79281D #1D7928

tetradic

#281D79 #791D40 #6E791D #1D7956

square

#281D79 #791D40 #6E791D #1D7956

split-complementary

#281D79 #79561D #40791D

monochromatic

#080619 #181148 #281D79 #3829AA #513FD1

Accessibility & contrast

On white

13.62

#281D79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#281D79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D79

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D79	#FFFFFF	#000000	##FFFFFF
##281D79	1.00	13.62	1.54	13.62
#FFFFFF	13.62	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317C

Deuteranopia (green-blind)

#002A77

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281d79;
/* rgb */ color: rgb(40, 29, 121);
/* oklch */ color: oklch(31.5% 0.147 279.1);

Tailwind

colors: {
  custom: {
    50: '#6e5ba1',
    500: '#281d79',
    950: '#000000',
  },
}

SCSS

$custom: #281d79;
$custom-light: #6e5ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#281d79",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 121
  },
  "hsl": {
    "h": 247.174,
    "s": 61.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.3152,
    "c": 0.14739,
    "h": 279.1
  },
  "luminance": 0.0271
}

Semantic roles & 50–950 ramp

primary

#281D79

secondary

#A0AD45

accent

#E443D1

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281D79

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →